264 . SUPPLEMENT. 
The specimens from Totonicapam vary a little from the type in having the thorax 
black with an oblong orange-red spot on each side, and the luminous segment, which is 
almost confined to the sixth in both sexes, roseate. A good series was obtained at 
Duefias, all of which agree pretty closely. 
Photinus lunicollis (p. 44). 
Several more Guatemalan specimens from Duefias and Capetillo have been examined 
by me; many individuals show no trace of luminosity in either sex, while some males 
have the sixth segment whitish. 
Photinus aurora (p. 45). 
To the localities given, add :—Panama, Bugaba (Champion). 
Photinus albicauda (p. 46). 
To the Mexican localities given, add :—Jalapa, Cordova (Hége). 
Two specimens; one from Jalapa brightly coloured and easily recognized, a male ; 
one from Cordova discoloured and doubtful. 
19 (a). Photinus moestus. 
Ater, ovatus; prothorace disco rufo, nigro-vittato, lateribus nigris, margine antico dilutiori quam 9°. 
Mas? Segmento septimo cum pygidio utrinque albescente. 
Femina. Abdomine toto nigro. Long. 8-93 millim. 
Hab. Guatemata, Purula, Cubilguitz, San Gerénimo (Champion). 
Not unlike P. sanguinicollis and mentioned under that species as possibly identical 
with it. It is, however, more oval, and has its thorax more widely margined with 
black. The black vitta is of nearly the same width in the middle as the margin, but 
widens at the base and in front. Thus the disc is divided in two blood-red areze. The 
thorax is very nearly semicircular. The wholly black abdomen is noticeable and will 
separate it from its allies at present described. One male specimen from Purula has 
the abdomen with only a faintly whitish area on each side of the black genital eighth 
segment, that is to say on the seventh ventral and on the pygidial. But I think this 
male may be a specimen of P. guatemale, as another male has the abdomen black. 
19 (s). Photinus eous. 
Oblongo-elongatus, nigro-fuscus; prothorace miniato, margine albescente, disco canaliculato medio parum 
infuscato; antennis articulis tribus vel quatuor ultimis albis; abdominis segmentis quatuor apicalibus 
utriusque sexus indeterminate albis. Long. 7-8 millim. ¢ 2. 
Hab. Panama, Volcan de Chiriqui, Bugaba (Champion). 
